Unanswered questions used to stay at the top, but now they sift down. I don't have answers for you, but am replying in order to bump this back up so people will see it. Sounds like you have plans for a fantastic garden. Wish I lived next door to you ... :-)

I grow in a different situation that you. I have a raised bed garden but it is over limestone marl. I have no soil to speak of, so I do not want to say anything about technical stuff.

I have grown armenian cucumber. It likes it hot. Have a hard time getting it to fruit and hold onto its fruit. I give it fertilizer to encourage flowering. That has helped. I use the long Chinese cucumber (whose name I forgot) because it performs well in heat and humidity.

Rat tailed radish is a cool weather plant. I really like it. grows when pleas grow.It is Easy.

I grew hairy vetch and australian pea as a green manure all last winter. It really improved my soil. I think now would be a good time top plant it , but not any later. They die off in the heat.

Papalo: I grow it in a pot. It is a prolific seeder. It might become a weedy weed in a garden if not looked after. I was always dead heading it and throwing seeds in the pot. Seeds are the kind that blow away. I always had many sprouts. I like the flavor when it is young better than when it matures. Interesting flavor. I like it but my husband thinks it taste like soap.

Calendula is another cool season plant. It would have made it through this winter. I would plant it now.

I have not grown your variety of amaranth but they are all easy and seed themselves. I see them coming up in March.

Malabar spinach: keep it wet. It might like a heavier soil than mine. It might prefer your clay soil..

Tatume squash... Delicious. It needs a good structure for climbing. Watch out for squash bugs of both kinds. I don't remember it being overly susceptible to the vine bore but man did it succumb to the army of squash bugs one year. I have stepped back from squash because I lost the battle bad one year and I am letting them go elsewhere.

Bee balm: I collected wild and scattered seed in the fall and I have had it ever since.I use it as a wildflower.

good luck on the white sage (Salvia alpiana). It really does not like heavy soil or our humidity. I have killed it in a very calcarious draining limestone soil in the Hillcountry three times.

Lemon grass, I had a huge clump in Austin in a heavy clay soil that was amended , but I dies during the winter where I am now due to cold. I would always take insurance clumps and protect in the winter.

Basil, I have some thai basel that has lived through this winter, but so has my peppers.. first time. I plant in spring and it is easy. all basils are easy.

spinach : I grow in the winter.

Peas : better have them in the ground now. The spring will probably be on us quick. I usually plant my peas in January and I protect them in the frosts, but they are still small and easy to pile the mulch on them.

I use Rattlesnake beans and they are good in our heat and can deal with some dryness.

Feverfew grows wild, but I have a native variety in my rock scree.

I have not grown your specific varieties of many of these plants but similar plants. I follow the Agrilife schedule for Travis county and all seems to usually grow fine unless I run out of water or over ridden by bugs. As many squashes that you have, you will be spending a lot of time looking for squash bugs and squash vine bores. Some people grow them on the ground so they can keep them covered with a row cloth till they start flowering. I also keep a thing of soapy water around to kill any squash bugs and harlequin bugs.

I prefer to use hardwood saw dust and I stay away from pine. I live and work in a woodshed. We toss the pine and other stuff out on the front field.

I will be using cowpeas as a green manure this summer if we have enough rain. I do like the young pods as a green bean substitute. I do not water in the summer. I normally walk away from my garden and let things go and go for a swim.

It looks like you have a large amount of plants. good luck and good growing.

Not sure exactly where you are (this info comes from the high plains).

Lemon grass likes to grow in water logged soil/bog gardens but freezing will kill it so bring it in when it freezes.

Armenian cucumbers can go gangbusters around here but if it rains a bunch you have to watch for powdery mildew.

Lemon & Bee Balm only grow if really watered around here and I do mostly natives with little water so I only get them in my pocket prairie in wet years.

Basil including purple basil grows great here and will self seed for the next year if you let it go to seed at the end of the season.

Hope this helps.

K-

As to growing avocados... Commercial production in Texas is limited to far South Texas because the trees don't do well with freezes. Zone 9 (most of south Texas) includes temperatures between 20º and 30º, and Austin historically drops to 15ºF. Expert opinions say even the hardiest of avocados will suffer damage and die back from temperatures below 27ºF. As avocado trees grow 30 to 40 ft. tall you should look into the only dwarf variety – Wurtz. It only grows to around 10 ft. and is suitable for a large container, but would still require a taller green house. Here is a LINK to an article on avocado varieties.

The only plants I've grown on this list so far are basil and jalapenos - they were both very easy and grow well together. My boyfriend and I grew four jalapeno plants and we got a couple pounds of peppers and made enough jalapeno jam for our friends and family. One basil plant was enough for a small batch of pesto, snip early/often to promote branching and bushy growth.